Method and apparatus for interferometric radar measurement
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United States of America Patent
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Feb 26, 2008
Grant Date -
Jul 27, 2006
app pub date -
Sep 20, 2005
filing date -
Sep 21, 2004
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Abstract
In a method for interferometric radar measurement, at least two side looking RADAR systems on satellite and/or missile-supported platforms illuminate a common surface area by means of microwave signals. A first side looking RADAR system sends a first radar signal on a first transmit frequency, and at least a second side looking RADAR system sends at least a second radar signal on at least a second transmit frequency. At least one of the at least two side looking RADAR systems receives the at least two interfering radar signals reflected on the common surface area, determines difference phases of the received radar signals from the interferograms, determines therefrom a drift of a system clock of the at least two side looking RADAR systems, and compensates the determined drift.
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